Certified GKH Gardening Expert
One day outside won't hurt. As far as watering- there is no set amount. What you want is to wait until the top 2 inches of soil is completely bone dry before watering again. Water, slowly, until a little comes out of the drain holes, then stop.
Here is an article that will help: https://www.gardeningknowhow.com/edible/herbs/chives/growing-chives-indoors.htm